Apparatus for charging and feeding fuel to steam-engines.



Patented Aug. I4, i900. E. EFRAN. APPARATUS FUR CHARGING AND FEEDING FUEL T0 STEAM ENGINES.

, (Application med Dec. 9, 1899.) (No Model.)

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No. 655,700. Patented Aug. I4, moo.' E. FRAN APPARATUS FOR CHANGING AND FEEDING FUEL T STEAM ENGINES.

` (Application led Dec. 9, 1 899.) (No Model.)

42 Sheets-Sheet 2.

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raras @NNE PATENT @intrest APPARATUS FOR CHARGING AND FEEDING FUEL T0 STEAM-ENGINES.

SPECIFICATION formingpart of Letters Patent No. 655,700, dated August 14, 1900.

Application filed DecemherQ, 1899. Serial No. 739,805. (No model.)

To @ZZ whom t may concern:

Be it known that I, EMIL EFRAN, a subject of the Emperor of Austria-Hungary, and a resident of Brunn, Austria-Hungary, have invented certain new and useful Improve ments in Apparatus for Charging and Feeding Fuel to Steam-Engines, of which the following is a specification.

My present invention relates to improvements in apparatus for charging and feeding fuel to steam-engines, such as described and set forth in my prior United States application, Serial No. 7 00,055; and it consists in the construction and novel combination of parts, fully described and claimed hereinafter.

In the accompanying drawings, Figure 1 is a front view of the improved apparatus. Fig. 2 is a side elevation thereof with parts shown Fig. 3 is an enlarged view of a movable fire-bar and the actuating connections. Figs. 4, 5, and 6 are enlarged detail views of the device for conveying fuel from the charging or filling funnel upon thegrating. Figs. '7and8 show a modiiicationhereinafter referred to.

Like letters refer to like parts throughout all the views.

The principal features of the invention con sist in providing'means for relieving the slides from strain and imparting double movement to the fuel as the latter travels over the grating, which result is attained by actuating alternately the fire-bars of the latter, and devices whereby the fuel is easily conveyed from the illingfunnel into the fire-box without crushing said fuel. The slides are relieved from strain and a double movementis imparted to the fuel on the firebars by forming small steps on said fire-bars and moving longitudinally each alternate nre-bar, the parts being arranged so that when the movable fire-bars are brought to their extreme front position the steps thereof are located in advance of the steps of the stationary fire-bars to a distance of about the length of their stroke. Said steps produce at each stroke a conveyance or feeding Vof fuel, which is brought at the end of each stroke behind the steps of the stationary fire-bars, upon which the fuel is retainedwhen the movable bars are again moved forward.

The movement of the alternate re-bars is obtained as follows: The front ends of the movable fire-bars R7 are hook-shaped and fitted over a shaft W, Figs. l, 2, and 3, carrying wheels or rollers R4,running over suitable rails S, secured to the frame of the nre-box. The rear ends of said movable fire-bars rest on another shaft W, arranged on the rear support R. The movement of the shaft W is obtained as follows: The hubs e4 of the cams E and E, Figs. 1, 2, and 3, actuating the slides S', are arranged eccentrically and employed for actuating levers h2 and 7a4, provided with longitudinal eyes A2 A4, respectively, engaging said eccentric hubs, said levers being pivoted on pins z2, secured to the frame of the fire-box. The lower ends of said levers h2 h4 are pivotally connected with the shaft W by means of connecting-rods S2 S3.

It will be seen that each revolution of the motor-shaftWZproducesalongitudinal movement of the fire-bars restingon the shafts W and W to a distance corresponding to the double eccentricity of the hubs, whereby the fuel is slowly carried away without preventing the same from burning, as would be the case when the nre-bars are moved vertically at the same time. The stationary fire-bars rest at their front ends on the support R and at their rear ends on the support R.

The fuel is fed from the filling or charging funnel to the grating by the following arn rangement: Under said filling or charging funnel I arrange a carriage W7. The wheels R3 R5 run on the upper frame-plate P, Figs. 1, 2, 4, 5, and 6, the side and back walls of the funnel extending to the plate P of said carriage, While the front wall is terminated at l at a distance of about ten centimeters above said plate P. Vhen the carriage is in its extreme forward positiomthe plate P closes the lower openin g of the funnel, and the front edge K of said plate extends to a certain distance from the front wall of the funnel, said projecting plate portion being in accordance with ,the nature of the fuel and the quanti'- ties to be fed to the grating. This arrangement results in that the fuel is settled upon the carriage on a certain incline, and when the carriage is moved backward until the front edge thereof is in the plane of the front wall of the funnel theamount of fuel on the fore end of the carriage is caused to drop through the aperture s', provided in the plate P5, upon the incline P5, said fuel rolling then down before the feed-slides S, pushing the fuel over the plate Pl upon the grating. When the fuel is located on the grating, it is submitted to the pressure from the slides and to the continuous action of the movable firebars. When the carriage is again moved forward, it carries with it the amount of fuel settled on said carriage, while fresh fuel comes on the latter.

The motion of the carriage is obtained as follows: To the under side of the carriage-v plate P are suitably secured two bars S5 and S5, Figs. l, 4.-, 5, and 6, in the ends L of which 'are journaled the shafts of wheels R5 R5, and which are terminated by slide-heads G G2, respectively. Said slide-heads are provided with pins z' and z3, respectively, engaging elongated eyes provided in levers 7?.' h2, pivoted on pins a2, already described, and the lower ends of which are provided with elongated eyes A A3,`engaging cams Il' H5, keyed upon the drive-shaft W2 for this purpose. It will be seen that the rotation of said shaft imparts a reciprocating movement to the feedcarriage.

Instead of actuating the slides S by means of the cams E E2 and to cause the rods of the slides to engage circular grooves in said cams I provide said rods' B, Figs. 7 and 8, with elongated eyes a, embracing cams E5. The hub N, the side plate p, and the camdisk E5 are made integral with one another. The side plate p is secured by means of screws s2, said plates p p serving to hold the rodeye a in the vertical plane.

Instead of causing the slide-heads G G2 of the bars S5 S6 of .the carriage W7 to slide in slots provided in the frame of the fire-box I able and stationary fire-bars,and steps formed on the upper faces of said fire-bars, of the shaft W supporting the rear ends of the movable fire-bars, another revoluble shaft, supporting the front ends of the movable firebars, wheels on said shaft and running on suitable rails secured to the frame of the fireboX, levers 71.27# pivotally connected with said shaft and pivoted in pins a2, elongated eyesk in said levers a drive-shaft and cams E, E4, keyed on the drive-shaft and the eccentric hubs e4 of which are engaged by said elongated eyes, substantially as set forth.

2. ln an apparatus of the class described the combination of the device for conveying fuel from the charging-funnel to the grating embodying the charging-funnel, a fiat earriage the Wheels of which run on the upper plate P of the nre-box, a suitable aperture in the front wall of the charging-funnel, another aperture in the plate P, levers 7L, h5 fulcrumed onpivots z2 and pivotally connected with said carriage elongated eyes in the lower ends of said levers a drive-shaft W2 and cams H', H3 keyed on the drive-shaft and engaged by said elongated eyes, substantially as set forth. n

In testimony whereof I have hereunto set my hand in presence of two witnesses.

EMIL EFRAN. Witnesses:

U. KNUAK, W. DRAHA RONGEN. 

